The Hdmi Board's Sink Key Cache - AMX Optima Instruction Manual

HDMI I/O Board
3.
Plug the other end of the serial cable into the serial port on the PC.
4.
Open a terminal emulation program (e.g., TeraTerm, PuTTY, or
HyperTerminal).
5.
Select the COM port and check that the settings match those in the Optima
Serial Port Settings table to the right. If the COM port settings do not
match, enter the applicable values from the table.
Click OK.
6. Apply power to the Optima.
A short splash screen appears.
Important: As you enter each of the commands in Step 7, check to be sure all destinations display
stable video. If a destination (sink) does not support HDCP, its display will turn solid red.
(If any of the commands fail, try routing the input to each output individually.)
7. Enter the following sequence of commands, which routes each source to all destinations.
(Each one-to-all command can take up to as much as a minute and a half to complete.* It is normal
for the remaining monitors to lose and then regain content as each new output is added.)
CI1O*T
CI2O*T
CI3O*T
CI4O*T
CI5O*T
CI6O*T
CI7O*T
CI8O*T
Or
Route each input to all runtime intended outputs with BCS commands.
As the process is completed, the keys for the destination devices are stored in the Optima HDMI input's
sink key cache.
The HDMI I/O board caches the keys and continuously sends them to the source (in a cumulative
manner) even if the source is only connected to a single output at a time. If that single input has been
switched to more of the outputs than its sink key cache will support, the source device will fail.
* Time for initial authentication can vary noticeably for different source and destination devices.
Note: For additional information on BCS commands, see the "Instruction Manual – BCS Basic
Control Structure Protocol" at www.amx.com.

The HDMI Board's Sink Key Cache

If you need to persist the sink key cache on the HDMI board or clear persistence of the cache, follow the
instructions provided. This procedure requires a terminal program (e.g., TeraTerm, PuTTY, or
HyperTerminal).
Command to Persist (Save) Sink Key Cache
The HDMI I/O board uses the BCS command ~app! (warm boot) to save the sink key cache on all of
its inputs.
Note: The command also persists the routing state of the entire system.
Important: These commands apply to the routing state of the entire system. All HDMI boards in the
system receive the request. These commands cannot be sent to a specific board or specific input.
The board's CPU must be in a "ready" state before the command is sent. The ready state can be
determined on the splash screen.
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Optima
Serial Port Settings
Baud Rate 9600
Data Bits 8
Parity None
Stop Bits 1
Flow Control None
Optima Instruction Manual